Service · Directory of Plumbers
Bathroom plumbing
Bathroom plumbing covers fixture work (toilets, faucets, shower and tub valves), supply and drain repairs inside the room, and the rough-in piping for remodels. Fixture-level work is usually priced per task; remodel rough-in is licensed, permitted work priced from the plan, because moving a drain or a vent is a code-governed change, not a fixture swap.
The expensive bathroom surprises are predictable: corroded galvanized or cast iron revealed when a wall opens, a shower valve with no access panel, subfloor damage under a long-leaking toilet flange, and drain lines that do not slope correctly for a moved fixture. A good quote names what is included, what the likely hidden conditions are, and how a change is priced when one is found, before the wall is open.
What a complete bathroom plumbing job includes
- Toilet repair (fill valve, flapper, seals) and replacement, including flange inspection
- Faucet, shower, and tub valve repair and replacement
- Supply stops, supply lines, and drain and trap work at bathroom fixtures
- Remodel rough-in: relocated drains, vents, and supplies to code, under permit
- Leak checks at every disturbed joint before finishes close
Cost frame
From the cost guide: toilet repair typically runs $150 to $350; toilet installation or replacement $350 to $800; faucet installation or replacement $250 to $550. Remodel rough-in prices from the plan and the permit; get it as its own written scope, separate from fixture and finish costs.
Full table: plumber cost guide.
Get matched free for bathroom plumbing
Find this service by metro
Questions about bathroom plumbing
Does a bathroom remodel need a plumbing permit?
Moving or adding drains, vents, or supply lines almost always does, and the inspection happens before walls close. Like-for-like fixture replacement usually does not. Your permit office and your plumber's quote should agree on which case yours is.
Why does my toilet rock, and does it matter?
A rocking toilet usually means a failed wax seal, flange damage, or subfloor damage underneath. It matters because the seal is what keeps sewer gas and water out of the floor structure; the fix is to pull the toilet, inspect, and repair the cause, not to caulk around the base.
Can I supply my own fixtures?
You can, by agreement in writing first. Supplying major parts yourself often splits the warranty: the plumber warrants labor, you own the parts warranty claim. Many homeowners find the single-warranty route, plumber supplies and warrants the fixture, worth the markup.
Go deeper
The full guide: Bathroom plumbing guide and reference. Licensing for this work in your state: licensing by state.